Distributed Name Service (DNS) Management Operations Manual

3 DNS Management and
Operations
31258 Tandem Computers Incorporated 3–1
This section discusses how to install DNS and how to initialize, start, and stop DNS
configurations. This section also contains system management duties, such as defining
a network node, changing a DNS file name, and securing your DNS database. Most
DNS management operations are done using DNSCOM commands.
After you initialize and start your DNS configuration, proceed to Section 4, “Building
and Modifying the DNS Database,” to create your name database.
Also, see Sections 6 and 7 for information on using the DNSCOM commands to define
your DNS names. Section 6 provides an overview of DNSCOM, with specifics about
how to use the DNSCOM command interface. Section 7 contains reference
information for the DNSCOM commands.
The following operations are included in this section:
Installation planning considerations
Installing DNS
Initializing DNS configurations
Starting DNS configurations
Stopping DNS configurations
Checking the states of DNS
Updating the database
Changing DNS file names
Securing DNS
Recreating DNS configurations
Backup procedures
Updating definitions on unavailable nodes
Error recovery
Installation Planning
Considerations
The next few subsections contain information about dependencies for running DNS.
In addition, the relationship between DNS and Tandem Distributed Systems
Network Management (DSNM) is discussed.
DNS Dependencies:
Guardian 90 and TMF
DNS is dependent on the Guardian 90 operating system and on the Transaction
Monitoring Facility (TMF). TMF must be configured on all nodes on which you intend
to define or import name definitions. TMF ensures the consistency of updates to the
DNS database. DNS uses TMF for all update operations. Applications you write that
update the database programmatically must also use TMF.
By using the TMFCOM commands, you establish the TMF configuration required by
DNS. This includes entering commands to:
Initialize TMF
Initialize the TMF catalog
Create the audit trails
Define the audit dump processes
Before you can run DNSCOM and initialize DNS, you must start TMF. For further
information about using TMFCOM, refer to the Transaction Monitoring Facility (TMF)
System Management and Operations Guide.